Home / 20,330.55-30,484.59-6,286.71

Finding the Fourth Proportional to 20,330.55, 30,484.59 and 6,286.71

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Solution

The fourth proportional to 20,330.55, 30,484.59 and 6,286.71 is: 9,426.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.55 : 30,484.59 = 6,286.71 : x
  2. Step 2: Convert to fraction form
    20,330.55/30,484.59 = 6,286.71/x
  3. Step 3: Cross multiply
    20,330.55x = 30,484.59 × 6,286.71
  4. Step 4: Simplify right side
    20,330.55x = 191,647,776.80
  5. Step 5: Solve for x
    x = 191,647,776.80/20,330.55
  6. Step 6: Final answer
    x = 9,426.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.